Notes:

Usually when I'm blocking an IP user from editing, I tick the second box, but leave the other boxes unticked, so that they have talk page access, and have the chance to request an unblock. I leave the last box unticked, so that if any registered users are using that IP address, they will be unaffected by the block.

Usually when I'm blocking a regular troll or vandal, I tick the second box, but leave the other boxes unticked, so that they have talk page access, and have the chance to request an unblock.

Usually when I'm blocking an underage user, I leave all the boxes unticked, in-case the user has any questions or concerns about why they have been blocked for being underage.

Usually when I'm blocking a user with an unacceptable username, I don't tick any boxes, so that the user can create another account with an appropriate username, and access their talk page in-case they want to ask about how and why their username is considered inappropriate.

I would formally tick the second box but to save them the trouble of having to use another wiki to ask about their block, I subsequently decided against doing this.

Usually when I'm blocking a sock-puppet account, I tick all the boxes, although I find it optional for me to tick the third box.

Usually when I'm blocking a user that has blown away all their chances, I tick all the boxes, although I find it optional for me to tick the third box.

Block Log:

What the settings for the respective notes in the notes section above look like in the block log: